Fire extinguisher



Jan. 8 1924 G. W. COLLIN FIRE EXTINGUSHER Filed Maoh 1o 1922 INVENToR.Gea/:ge W fallan Y kwam/m ATTORNEYS.

Patented Jan. 8, 1924.

. UNITED s'rA'rEs PATENT OFFICE.

GEORGE W. COLLIN, OF BRIDGEPORT, CONNECTICUT.

' FIRE EXTINGUISHER.

Application tiled Iarch 10, 1922. Serial No. 542,560.

improvements in automatic lire extin uishers-adapted to be applied tothe interior of a room.

The invention is adapted to be used in connection with a water supplyforming part of which is commonly called a sprinkler system, or may beused in connection with a supply of chemicals, provided in individualcontamers, or in a larger receptacle having pipe connections withseveral of my automatically operated outlet valves.v

The purpose of the invention is to provide a simple and inexpensive formof thermostatically operated valve mechanism which is adapted to beattached in any convenient place and operated by extreme heat asgenerated from a fire to which the device is exposed.

I have further especially yadapted my improved fireextinguisherfforattachment to the side walls or ceilings of rooms sothat the water or chemicals'when automatically discharged, will besprayed out in all direc- 'tions upon the fire which is probably burningbelow, and the heat from which had previously ali'ected the thermostaticvalve in a way to automatically operate the same. The extinguisher isfurther provided with an adjustable means so that the water or chemicalmay be discharged at any desired temperature as .is obviously requiredin a device of this sort. v

With these and other objects in view the invention resides and consistsin the con- "struction and novel combination and arrangement of partshereinafter more fully described, illustrated in the accompanyingdrawings, and pointed out in the claims hereto ap ended, it .beingunderstood that various c anges in the form, proportion,

size and minor details of construction within' the scope of the claimsmay be resorted to without departure from the spirit or sacri- Aficingany of the advantages. of the invention.

4tion of the body and is Y 15 whereby the fluid Similar characters ofreferencedenote like or corresponding parts throughout the severalfigures of the accompanying drawings forming a part of' thisspecification, and upon which,

Fig. 1 shows a side elevation of my im proved automatic lireextinguisher, the same connected by a broken pipe, with a container forfire extinguisher chemical; and

Fig. 2 shows a front sectional elevation of the automatic thermostaticvalve device shown in Fig. 1.

Referring in detail tothe characters of reference marked upon thedrawings, 5 represents a valve body which may be formed integral with abase 6 and wall plate 7 adapted to be attached to either side wall videdwith a central chamber 9, the upper end portion of which is closed bymeans of a detachable plug 10y having a central hole 11 therethrough,with which the supply pipe 12 is connected. This pipe may be connectedwith a chemical tank 13, so that the device can be used for dispensinglire extinguishing chemical, or may be connected with aA waterl supply,not shown, so the extinguisher may be used for releasing water insteadof chemical. The chamber 9 of the body portion is provided with anannular valve seat 14 surrounding the top edge-portion of the port 15 toaccommodate the valve 16 and its stem 17. The stem further extends downlfrom the central hole 18 of the lower end porp rovided upon its outerend portion with adi' 19 and 20.

A series of radially disposed ports 21 extendout in various directionsfrom the portI assing down therethrough will be distrlbuted through saidseries of ports in relatively fine sprays to equally distribute theextinguishing fluid within the desired radius within the room.

A U-shaped thermo-plate 22 of im roved design is employed lfor operatingthe efore v or ceiling of a room in any suitable manner, for instance byscrews 8. This body is proustable stop nuts mentioned valve and stem andas will be v 7, by means of screws 25 passing throu h- Slots of thebracket and engaging the said so y i 'the rising temperature andexpansion of the Wall plate in a way to rmly hold the bracket in itsadjusted position. The treeil operating end portion of 'the thermo-loopis preferably .slotted as at 26 to accommodate the end portion of theValve stem which extends therethrough.v The stop nuts 19 and 2O locatedupon this valve stem are ar-v ranged in spaced apart relation, topermitof a limited free andv unoperative movement of the said tree end of thethermoloop Without raising the valve and whereby the thermo-loop ispermitted 'to expand a reasonable amount, due to natural conditions,without' affecting the valve, but Whereby further and excessiveexpansion necessarily due to a-ire, would causeit to engage the top stop19 to lift the valve in a way to release the liquid therein anddischarge it throughthe several radial ports.

rlthe normal adjustment of the bracket andv its thermo-plate withreferenceto the stops on the lower end of valve stem are such as tocause the free end portion of the thermoplate to engage the lower stopnut 20 as indicated in the drawings so as to naturally hold the valvedown upon its seat, which to-` gether with the pressure of the fluidagainst the top side of the valve would be sucient to hold it tightlyclosed.

From the foregoing it will be seen that with thermo U-plate, the treeend of 'the same comes into contact with the nut 19 in away to` raisethe valve against the initial presvsurewhich holds it down, and as thetemperature further rises the thermo (Ul-plate expands further and aspring action thereof develops, whichl when overcome by the increasedpressure of the U-plate, causes the valve to quickly break from itsseat, where-V upon all resistance is lost and thespring action of thesaid thermo U-plate leaves the valve, full open.

My automatic thermo-operated A re enxtinguishing valve is very simple inconstruction and is thus an attractive manufacturing proposltion since1t 'comprises a relatively tew number-of parts which may be adjusted.

easily formed, readily assembled, and installedDv let port Ihaving avalve seat, a

maratea Having thus described my invention, what ll claimv and desire tosecure by Letters lPatentis- Y 1. lin a lire extinguisher, thecombination with a base plate and chambered body portion having inletand outlet ports, said out'- valve normally engaging said seat andcovering the outlet 4and provided with an external stem portion carryinglongitudinally spaced apart stops, cured at one end to the base plateand having its free end positioned intermediate said stops, beingnormally spaced from the innermost stop and engaging the outermost stopunder pressure to yieldingly maintain the valve on its seat, and adaptedto engage the innermost stop to raise the stem and its valve upon apredetermined expansion of said thermo-plate.

2. lin a tire extinguisher, the combination of a base plate, a valvebody mounted theremally engaging said seat and covering the outlet andhaving a stem portion which projects through said valve body, aresilient thermo-plate secured to said base plate at one end andconnected at its other end to said Stem, whereby'it normally maintainssaid valve upon its seat under pressure and is adapted upon expansion toraise the stein and valve.

3. The invention as in claim 1, further characterized by saidthermo-plate being adjustably mounted on said base plate to vary thepressure of the thermo-plate upon said valve in the closed positionthereof. Signed at Bridgeport, in thecounty of Fairfield and State ofConnecticut, this 9th day ot March, A. D. .1922. v

. GEORGE W. COLLIN.

Witnesses:

C. M. NEWMAN, MILLIAN M. Annina.

guide passage beneath the a resilient U-shaped thermo-plate se-

